[codeulike]

Salesforce deserve a lot of credit for staying online for 15 years or so while upgrading and expanding the platform every six months, while minimising breakage to customers' customisations. Imagine how most projects would look if you tried that, the developers would usually want to scrap it and re-write after 18 months or so.

[chrisweekly]

Also, massive credit for being a pioneer of SaaS per se. IMHO that's the most profound and impressive aspect to their success and legacy.